Granted Patent
Utility
US 6,170,549 · App. 09/336,104
Single facer with resilient small diameter corrugating roll
Inventor:
Carl R. Marschke
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Jun 18, 1999
Inventor
Carl R. Marschke
Assignee (at issue)
Marquip, LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.